General method to retrieve all effective acoustic properties of fully-anisotropic fluid materials in three dimensional space [PDF]
, 2018 Anisotropic fluid materials are of growing interest with the development of metamaterials and transformation acoustics. In the general three-dimensional case, such materials are characterized by a bulk modulus and a full symmetric matrix of density. Here,
Cavalieri, Théo +5 more
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3D Printing Strategies for Bioengineering Human Cornea
Advanced Healthcare Materials, EarlyView.This review highlights recent progress in 3D bioprinting strategies for engineering human corneas. Key aspects include the replication of corneal transparency, curvature, and biomechanical properties, alongside innovations in recent advancements in 3D printing methods, which benefit in overcoming current challenges.
Yunong Yuan +4 more
wiley +1 more source
Estudo das medidas de imitância acústica com tom sonda de 226 e 1000 Hz em neonatos
Audiology: Communication ResearchOBJETIVO: Estudar as medidas de volume, pressão do pico e complacência obtidas nas curvas timpanométricas de neonatos, na comparação entre gêneros e orelhas, utilizando tom sonda de 226 e 1000 Hz, e analisar as respostas obtidas na pesquisa dos reflexos ...
Bruna Noronha Teixeira +3 more
doaj
European Radiology Experimental, 2020 Background To examine in vitro acoustic property of nonalcoholic fatty disease in mouse and human liver to identify nonalcoholic steatohepatitis (NASH). Methods The acoustic impedance (× 106 kg/m2/s) was measured in 35 free fatty acids (FFAs, 500 mmol/L)
Hitoshi Maruyama +8 more
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Top Coating Anti-Erosion Performance Analysis in Wind Turbine Blades Depending on Relative Acoustic Impedance. Part 2: Material Characterization and Rain Erosion Testing Evaluation [PDF]
, 2020 Luis Domènech +5 more
openalex +1 more source
Smart Catheters for Diagnosis, Monitoring, and Therapy
Advanced Healthcare Materials, EarlyView.This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman +12 more
wiley +1 more source
Impedance measurement using a two-microphone, random-excitation method [PDF]
The feasibility of using a two-microphone, random-excitation technique for the measurement of acoustic impedance was studied. Equations were developed, including the effect of mean flow, which show that acoustic impedance is related to the pressure ratio
Parrott, T. L., Seybert, A. F.
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Near Source Acoustical Particle Velocity Measurements with Ambient Noise [PDF]
, 2007 An acoustical measurement very near a structure can be a cheap alternative to other contactless vibration measurement techniques such as laser vibrometry.
Boer, A. de +2 more
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Active diffusers : some prototypes and 2D measurements [PDF]
, 2005 Diffusing devices are used to improve room acoustics in a wide variety of applications. The dispersion generated by current diffuser technologies is often limited to mid-to-high frequencies because low-frequency diffusers are usually too large to be ...
Avis, MR, Cox, TJ, Xiao, L
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Real‐Time 3D Ultrasound Imaging with an Ultra‐Sparse, Low Power Architecture
Advanced Healthcare Materials, EarlyView.This article presents a novel, ultra‐sparse ultrasound architecture that paves the way for wearable real‐time 3D imaging. By integrating a unique convolutional array with chirped data acquisition, the system achieves high‐resolution volumetric scans at a fraction of the power and hardware complexity.
Colin Marcus +9 more
wiley +1 more source